Technical Tips > Post 84

85 L98 Smog pump delete

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gtc:
I can't speak for Vettes, but I've had experience with crappy EGR valves on Holden Barina sooting up and needing replacement too often.

The trick in that case was to place a thin piece of metal plate between the EGR and its mounting holes. (In fact there are now kits available to do it.)

The effect was to fool the ECU into thinking the EGR is working OK while having the EGR still physically in place for any nosey inspector.

Had to resort to this method because simply removing the EGR valve and capping off led to an unclearable ECU code and the engine running rough.

Vettech:
Yes GTC some mods have strings attatched.

Maybe some others may chine in with their thoughts or ideas or what was done to their vehicle.

Vettech:
So I bit the bullet and gutted the insides of the Smog pump.
I just need a big clean up and re-pack the grease in the bearings although the front bearing is a pressed sealed bearing a bit like the front one in alternators. I start very soon to re-fit everything on the front of this L98.

Vettech:
The smog pump is "repaired" - makes no funny noises and is as smooth as silk.

After much ado - the metal pipe that feeds water down to the "KC4" oil cooler has been fitted, my original thoughts were that this pipe may have been damaged or bent, but after more research it appears to go in place at an angle where I thought it went square to the  sump. But not so, after much grease, swearing, more holes in the hands/arms letting the red transmission fluid out we have success.

The brackets & diecast carriers have been painted, water pump is fitted, KC4 fitted along with Oil filter, now for a scotch & coke & a shower.

Oh P.S the water actually feeds out of the block into KC4, into the pipe and up to the pumps side inlet port.

Next is the heater hoses etc etc.
P.P.S - some one said to me " you have a 90, why don't you look and compare so as to fix the 87" - that would be just too easy, but went and looked anyway, everything under and in front of the sump is different, the A.I.R divertors, cross member, forward facing sub-member lower radiator hose, possibly the rad sits lower and looks different.  Good suggestion, now back to reality.

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